Li, Ying
Wang, Xin
Ren, Weidong
Xiao, Yangjie
Yu, Xiaona
Tan, Xueying
Article History
Received: 10 February 2021
Accepted: 27 May 2021
First Online: 31 May 2021
Declarations
:
: This study was approved by the ethics committee of Shengjing Hospital affiliated with China Medical University, and written consent was obtained from all patients before the study. All procedures were performed in accordance with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: Written informed consent was obtained from all the patients for publication of this manuscript and any accompanying images. The copy of the written consent is available for review by the Editor-in-Chief of this journal.
: The authors declare that they have no competing interests.